Tire spreader



Nov. 29, 192 7. 1,651,076

A.A,TROMBLEY TIRE SPREADER Filed March 1927 INVENTOR J4rLhur.AJ73wun6k Patented Nov. 29, 1927.

UNITED, STATES 1,651,076 PATENT "OFFICE.

ARTHUR A. TROMBLEY, 'OF' PLAINVILLE, CONNECTICUT.

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l This invention relates to tire spreading tools, and more particularly to a tire spreading tool for use in opening a tire ca smg in or er to permit access to the interior thereof for inspection and repair. 1

One ob ect of this invention is to provide a tire spreading tool of the above nature having means to permit the toolto be readily and easily moved along a tire casing formspecting the entire interior circumference thereof."

A further object is to provide a tire spreading tool of the above nature which, when arranged in normal position,.will automatically maintain the tire casing in open position. i A further object is to provide a tire spreading tool of the above nature adapted to be manipulated for o ening the tire to eater than the normal extent whenever esired.

A further object is to provide a device of the above nature which will be simple in construction, inexpensive to manufacture, easy to manipulate, compact, and very efficient and durablein use..

With these and other objects in.view there has been illustrated on the accompanying drawings one form in which the invention may be conveniently embodied in practice.

Ifig. 1 represents a plan. view of a tire' spreading tool embodying the invention.-

Fig. 2 is aside view of the same, shown partly in section.

Fig. 3 is a perspective view of a portion of a tire casing with the tire spreading tool in operating position. p 1

Referring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, the tire spreading tool comprises a substantially T-shaped bar preferably of metal, having an elongated handle 10 and a bifurcated or forked end including a pair of curved arms or prongs 11 and 12 connected with said handle at one end thereof. The handle 10 and the prongs 11 and 12 preferably lie in Y a uniformly curved surface, the radius of curvature of which is substantially the same as the radius of the tire casing 13.

The handle 10 atthe end opposite from the prongs 11 and 12 is provided with a circular aperture 13* for permitting the tool to be hung up upon a hook or other suitable support when not in use.- The handle 10. is provided intermediate its ends with an Application med nun a, 1927. was n. 173,638. I

aperture for receiving a roller-hold'in bolt 15, said bolt 15 having a reduce securely lock the bolt 15 upon said handle, a shoulder 18 of said bolt being adapted to engage with the convex under face of said handle 10.

The bolt 15 has a hexagonal head 19 and a smooth unthreaded section 20 for supporting a spool-shaped roller 21, said roller being somewhat loose on said section 20 and slidable between the tool handle 10 and the bolt head 19. The roller 21 is provided with a relatively flat thin tapered base 22 and a relatively steep tapered annular body por tion 23, whereby an annular shoulder 24 is formed between the base 22 and the body portion 23, said shoulder being adapted to engage either of the beads 25 and 26 of the tire casing 13.

The ends of the prongs 11 and 12 are also provided with s col-shaped rollers 27 and 28 similar in all respects to the roller 21 reviously described, said rollers 27 and 28 eing connected to the ends of said prongs 11 and 12 by bolts 29 and nuts 30 similar to the bolt 15 and nut 17, reviously described.

'In order to permit t e tire casing to be spread agart by varying amounts, the prong 12 is ma e somewhat longer than the prong 11. It will thusbe seen that the roller 21 is further from the roller 28 than from the roller 27, and consequently, the tire casingtion than'when swung in the reverse direc- 1 tion.

In operation, when it is desired to insert the tool within the tire casing for spreading the same, the operator will first bring the t'oolup to the "casing with the handle 10 at right angles thereto and position the rollers 27 and 28 in alinement with the opening in the casing. The rollers 27 and 28 will then be moved downwardly between the beads 25 and 26, and the handle 10 will next be rotated in a counter-clockwise direction until held in t is normal position, the handle 10 may be moved along in either direction to open the casing throughout its entire circumference, permitting the operator to locate punctures, etc, and remove nails or other foreign articles.

Whenever the operator desires to open the tire casing still further, the handle 10 may be rotated either forwardly or rearwardly, as viewed in Fig. 3. When rotated forwardly or in a clockwise direction, the tire casing 13 will be spread open a greater amount, corresponding to the distance between the rollers 21 and 28. When the handle is rotated rearwardly or in a counterclockwise direction, the casing 13 will be opened a still greater amount, corresponding to the distance between the rollers 21 and 27.-

While there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shownfor the purpose of illus tration only, and that the invention is not to be limited to the specific disclosure but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In a tire spreading tool, a body member having a handle, a pair of bead-engaging rollers on said body member for spreading apart the beads of said tire to a certain distance, and a third bead-engaging roller mounted on said handle for co-acting with one of said first-mentioned rollers to permit said bead to be spread apart a still greater distance.

2. In a tire spreader, a body member having three radial arms, each of said arms. carrying a bead-engaging roller whereby said tire spreader may be moved about the entire circumference of the tire casing to permit inspection and repair.

3. In a tire spreader, a body member hav-' ing three radial arms, each of said arms carrying a bead-engaging roller whereby said tire spreader may be moved about the entire circumference of the tire casing to permit inspection and repair, one of said arms having a handle member connected therewith.

. 4. In a tire spreader, a body member having three radial arms, each of saidarms car-' rying bead-engaging means whereby said tire spreader may be moved about the entire circumference of the tire casing to permit inspection and repair.

5. In a tire spreader, a body member having three radial arms, each of said arms carrying bead-engaging means whereby said tire spreader may be moved about the entire circumference of the tire casing to permit inspection and repair, said body member and arms lying in a curved substantially cylindrical surface. I

6. In a tire spreading tool, a handle shank having a bifurcated end provided with a pair of prongs, tire bead-enga ing means located on each of said prongs w ereby said casing may be spread open for inspection and repair, said handle shank also having intermediate its ends a third bead-engaging means, said third bead-engagin means cooperating with one of said otherIaead-engaging means forstill further spreading open said casing.

'7. In a tire spreading tool, a handle member having bead-engaging means intermediate its ends, a pair of curved prongs projecting from one end of said handle member, one of said prongs being longer than the other, and each ofsaid arms carrying beadengaging means at its extremity whereby said tool may be moved about the casing for inspection and repair.

8. In a tire spreading tool, a handle member having bead-engaging means intermediate its ends, a air of prongs projecting from one end 0 said handle member, and each of said prongs carrying bead-engaging means at its extremity whereby said tool may be moved about the casing for inspection and repair. I 1

9. In a tire spreading tool, a handle member having a bead-engaging roller intermediate its ends, a'pair of prongs projecting from. one end of said handle member, and each of said prongs carrying a bead-engaging roller at its extremity w may be moved about the casing for inspection and repair.

10. In a tire spreader, a body member having three radial arms, each of said arms carrying a bead-engaging flanged roller ereby said tool.

whereby said tire spreader may be moved 1 about the entire circumference of the tire casing to permit inspection and repair with any two of said rollers engaging the beads of said tire.

11. In a tire spreader, a body member having three radial arms, each of said arms ARTHUR A. TROMBLEY. 

